The current version of Poser 11 is no longer referred to as Poser Pro, the Pro part of the title has been dropped.  As for your problem, it sounds like there is a color map missing or the Diffuse_Color chip is white.  Have you applied any textures to V3 and, if you have, does it correct the problem?  By default, the PubicHair material zone is set to transparency.  Chances are that if you have a white Diffuse color and the Transparency values are set to zero you will have a white area.  However, without seeing the Material Room setup for this area I'm only guessing.